Power-transmission mechanism.



M. J. G. SOHOEDELIN.

POWER TRANSMISSION MECHANISM.

APPLICATION I'ILED JANJI, 1913.

1,106,246,, Patented Aug. 4, 1914,

2 SHEETS-SHEBT 1.

M. J. G. SCHOEDELIN. POWER TRANSMISSION MECHANISM.

APPLICATION FILED JAN.11,1913.

1, 106,26, Patented Aug/1, 191i 2 SHEETS-SHEET 2.

CJI

mission mechanism without toothed wheels,

which are in direct contact with the roll- MARIE JOSEPH GASTON SCHOEIDELIN, OF PARIS, FRANCE.

POWER-TRANSMISSION MECHANISM.

Specification of Letters Patent. Patented Aug; 4, 1914, Application filed January 11, 1913. Serial No. 741,517.

of the rollers 3 are provided with flattened portions and engage with round holes in the sides -l. In order to prevent the said pins 7 either from moving longitudinally or from rotating, the ends with flattened portions are engaged with plates 7 held in place by screws 7". The rollers 3 which are in contact with the inner periphery of the rim 1, are also in contact with the central portion 8 of multiplying or gear rollers provided with flanges 9. These flanges are intended to prevent any longitudinal niovemeiit of the rollers, and are also in contact with the bottom of annular grooves 10 provided in the shaft 11.

It will be understood that, owing to the great (liflcrence that exists in the diameters of the rim 1 and of the rollers 3, the latter will rotate at a speed already very much higher than that of the said rim, that moreover the rolls 8 will rotate at a speed much higher than that of the rollers, and that the speed with which they rotate, is transmitted with a very large increase to the shaft 11, by the flanges 9 with which they are provided and which engage with it grooves 10 of very small diameter made in the shaft 11. With apparatus thus constructed, it is easily possible to obtain a speed of rotation of the shaft 11 equal to 100,000 revolutions per minute.

It will be seen from the foregoing that the shaft 11 is held in position of the device To all whom it may concern.

lie it known that I, Marin Josnrn Gasrox Scnonosnm, citizen of the Republic of France, residing at Paris, France, have inventedv new and useful Improvements in Power-Transmission Mechanism, of which the following is a specification.

This invention relates to a power transa member rotating at member is caused to speed, for instance whereby starting from a low speed, another rotate at a very high 100,000 revolutions per minute, so that, for instance, the shaft of a steam turbine rotating at a very high speed, transmits power to a member rotating very slowly, without the intermediate parts employed, which are very simple, absorbing a considerable amount of the power.

The invention is also characterized by the parts used being designcdso that they remain of themselves in one and the same plane.

Other characteristic features of the invention will appear in the course of the description.

In order to make this invention clearly understood, the specification is accompanied by a drawing, given merely by way of example, in whic Figure 1 is a front elevation of the apparatus with one of its sides removed, Fig. 2 is a cross-section on line A-B of Fig. 1,

Fig. 3 is a longitudinal view of a multias illustrated in Figs. 1 and 2 merely by plying or gearroller, Fig. 4 is a view of the parts which drive it which does away the central shaft, Fig. 5 is a longitudinal section of the rollers in contact with the rim, Fig. 0 a longitudinal section of a modified construction of the rolling mechanism, and Fig. 7 is a modified construction of the sides or frames ofthe apparatus, in order to provide for regulation of the position of the spindles or pins of the rollers with any supports in which it would be exposed to friction.

in the construction shown in Fig. 6, the rim 1 drives the rollers 3 which are prevented from moving in the longitudinal di rection by the checks 3 with which they are provided at their ends, and the said cheeks 3 engage with grooves made in the shaft 11 to be driven. In that way a very high speed of the latter is obtained with an exceedingly simple construction.

The sides 4 could be designed so as to render possible regulation of the position of the rollers 3 in the construction of the mechanism shown in Figs. 1 and 2, and to that end. the screws 7 b are carried through elongated holes 13 of plates 7 (Fig. 7). On the contrary, the holes through which the pins 7 pass in said plates a, are circular, while the holes 7 of the sides 4 are elongated.

ing rim.

In the said drawing (Figs. 1-0) 1 is a rim provided at each side with a flange 2 extending inward and intended to prevent any lateral movement relatively to the rim, of the rollers 23 which it contains. These rollers 3 are preferaliily in the number of three. and their pins or spindles are supported by the sides 4 arranged at each side of the rolling mechanism. The sides 4: are connected together by screws 5 engaging with braces or stays 6. The ends of .the pins 7 Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. Power transmission device of the character described, comprising in combination, an elastic rim adapted to be rotated, rollers Within said rim in frictional engagement With the inner periphery of the same, a driven shaft between said rollers provided With grooves for positioning said rollers Within said rim, side plates for said rim, and means for connecting said side plates,

substanti ally described.

2. Power transmission mechanism comprising in combination, an outer elastic rim adapted to be rotated, rollers Within said rim, means for positioning said rollers Within said rim, and for supporting the shafts thereof Within said rim, rollers in the center of said rim having their central portions in frictional contact with said first named rollers, and a driven. shaft between said sec ond named rollers adapted to be driven at a high rate of speed, substantially as described.

3. Power transmission mechanism comprising in combination, an outer elastic rim adapted to be rotated and provided with a flange at each side thereof, rollers Within said rim, frictionallv guided against the.

between the flanges thereof, shafts for said rollers, side plates for said rim providing bearings for the shafts of said rollers thrz'iugh Whieh said shafts extend, means for connecting said side plates, means for rigidly securing said shafts Within their bearings, a second set of rollers in the center of said rim provided with flanges and having their central portions in contact with said first set of rollers, and a driven shaft centrally located between said second set.

of rollers andpiiovided with grooves adapt ed to be engagetl'by the flanges of said second set of rollrs' tfor dri ling-said shaft at a high rate of speed.

Power transmission mechanisin com prising in combination, an out-er elastic rim adapted to be rotated provided With a flange at each side thereof, rollers within said rim frictionally guided against the same between the flanges thereof, shafts for said rollers, side plates for said rim constituting hearings for the shafts of said rollers and provided with holes through which said shafts extend with their flattened ends, means for connecting said side plates, plates upon said flattened ends and screws to secure said plates upon said ends for rigidly securing said shafts Within their bearings, a second set of rollers in the center of said rim provided with flanges and having their central portions in frictional contact With said first se of rollers, and a driven shaft centrally disposed between the rollers of said second set and provided With grootes of small diameter adapted to be engaged by the flanges of the rollers of the second set for lriving said shaft at a high rate of speed. 7

Power transmission device of the char acter described. comprising in combination, an elastic rim adapted to be rotated and provided with flanges, rollers Within said rim in frictional engagement withv the same be tween the flanges thereof, side plates for said rim, means for connecting said plates, shafts for said rollers extending with their fiattened ends through said side plat s, pins upon the ends of said shafts, plates upon said ends provided, with elongated slots, screws extending through said slots and en-- gaging said pins, for allowing a regulae tion of the position of said shafts and rollers, means in frictional engagement With said rollers, and a driven shaft provided with grooves adapted to be engaged by said means frictionally engaging said rollers for driving said driven shaft at a high rate of speed, substantially as described.

' In testimony whereof ll affix my signature in presence oft'Wo Witnesses.

MARIE JOSEPH GASTON SCHOEDELIN. Witnesses:

JuLnsBnn, I t I Hanson G. @OXE.

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